Clearwire Begins Global Roaming Collaboration with WiMAX Operators.

Memorandum of Understanding Lays Foundation for Global Roaming Capabilities with UQ Communications of Japan and Yota of Russia

KIRKLAND, Wash. -- Clearwire Communications, LLC, an operating subsidiary of Clearwire Corporation (NASDAQ:CLWR), announced that it has signed a memorandum of understanding (MOU) with WiMAX operators UQ Communications of Japan (UQ) and Yota of Russia that identifies the objectives and activities each operator will perform towards the realization of establishing WiMAX roaming between the operators.

Under the MOU, Clearwire, UQ, and Yota plan to collaborate on business and technical aspects of their respective operations to define and institute the process necessary to support international roaming and to ensure the operators' systems and devices are able to support roaming. Additionally, the operators will work with Clearwire's Global Alliance Partner Program members and other WiMAX operators to ensure that seamless roaming occurs in an increasing number of countries. Furthermore, the collaboration will leverage WiMAX Forum roaming guidelines, specifications and templates where necessary to help meet business objectives.

"Today's announcement confirms mobile WiMAX technology's maturity and robustness and reaffirms that it is the only commercially available 4G standard worldwide with an available ecosystem of infrastructure and devices," said Barry West, president of Clearwire International. "With over 500 WiMAX deployments underway in about 145 countries, the existence of a roaming framework - helping to connect operators as well as WiMAX customers - is vital to advanced cross-market cooperation."

"The mobile WiMAX position in the telecom market is currently so strong, that operators are taking action to organize a civilized roaming environment," says Dennis Sverdlov, CEO of Yota. "The trilateral MOU, signed by the leading global WiMAX operators, is evidence of that. We are committed to making telecom services easy to use for our clients, and this MOU was signed with their interests in mind."

"WiMAX is a worldwide technology standard available in many countries, which is already giving birth to a variety of new services and end user devices," remarked Takashi Tanaka, president of UQ Communications Inc. "As a global standard, international roaming is a natural service evolution, and we, as WiMAX operators, have to work closely together to make roaming services available as quickly as possible."

Clearwire, UQ, and Yota currently offer WiMAX services in their respective domestic markets. Through mutual collaboration, the companies will provide their customers the first international WiMAX roaming capability and help 4G services to follow the same global pattern towards international accessibility as other wireless technology.

In addition to today's announcement, Clearwire will continue to work closely with its Global Alliance Partners YTL Communications of Malaysia, wi-tribe of Pakistan, Vee Telecom of Taiwan, and Global Mobile of Taiwan to ensure successful roaming once the partner networks are commercially deployed.

About Clearwire

Clearwire Communications, LLC, an operating subsidiary of Clearwire Corporation (NASDAQ:CLWR), offers a robust suite of advanced high-speed Internet services to consumers and businesses. As part of a multi-year network build-out plan, Clearwire's 4G service, called CLEAR[TM], will be available in major metropolitan areas across the U.S., and bring together an unprecedented combination of speed and mobility. Clearwire's open all-IP network, combined with significant spectrum holdings, provides unmatched network capacity to deliver next-generation broadband access. Strategic investors include Intel, Comcast, Sprint, Google, Time Warner Cable, and Bright House Networks. Clearwire currently provides 4G service, utilizing WiMAX technology, in four markets and provides pre-WiMAX communications services in 50 markets across the U.S. and Europe. Headquartered in Kirkland, Wash., additional information about Clearwire is available at www.clearwire.com.

About UQ

UQ Communications Inc. is the only telecommunications company in Japan that offers nationwide high-speed mobile Internet services based on cutting-edge Mobile WiMAX technology. UQ started trial services February 26 2009, in central Tokyo, and launched commercial services July 1, 2009, expanding its coverage areas to Osaka and Nagoya, Japan`s second- and third-largest markets next to Tokyo. Strategic investors include KDDI CORPORATION, Intel Capital Corporation, East Japan Railway Company, KYOCERA Corporation, Daiwa Securities Group Inc. and The Bank of Tokyo-Mitsubishi UFJ, Ltd. UQ currently provides both wholesale and retail services, and several MVNOs have already started providing mobile Internet services using UQ WiMAX infrastructure. Additional information about UQ is available at www.uqwimax.jp/english/.

About Yota

Yota is the first Russian Mobile WiMAX network (in IEEE 802.16-2005 standard) providing high-speed Internet access and handover between base stations without session breaking. Yota 4G Internet is wireless, high-speed, unlimited and accessible everywhere within the coverage zone. A high-speed wireless network has been already deployed in Moscow, St. Petersburg and Ufa. Various types of devices provide easy connection to Yota. Among them are modems, notebooks, routers and HTC MAX 4G, the world's first GSM+Mobile WiMAX phone.

Yota offers unique mobile services, using the possibilities of fast wireless Internet access: mobile IPTV, video-on-demand, online music catalogue listing hundreds of thousands of tracks by world-leading labels, photo-blogging portal and lots of others. The Yota brand consolidates the companies responsible for network deployment, software development and media content aggregation.

For more information, please, visit Yota's official web-site at www.yota.ru/en/.

Forward-Looking Statements

This press release contains "forward-looking statements" within the meaning of the securities laws. The statements in this release regarding plans for the development and deployment of mobile WiMAX technology; the timing, availability, capabilities and coverage of our network, including market launch plans; products and services to be offered on our network; collaboration plans, planned marketing and branding efforts and other statements that are not historical facts are forward-looking statements. The words "will," "would," "may," "should," "estimate," "project," "forecast," "intend," "expect," "believe," "target," "designed," "plan" and similar expressions are intended to identify forward-looking statements. Forward-looking statements are projections reflecting management's judgment and assumptions based on currently available information and involve a number of risks and uncertainties that could cause actual results to differ materially from those suggested by the forward-looking statements.

Future performance cannot be assured. Actual results may differ materially from those in the forward-looking statements due to a variety of factors, including, but not limited to, the risks referenced in the section of Clearwire's Quarterly Report on Form 10-Q entitled "Risk Factors," filed August 13, 2009. Clearwire believes the forward-looking statements in this release are reasonable; however, you should not place undue reliance on forward-looking statements, which are based on current expectations and speak only as of the date of this release. Clearwire is not obligated to publicly release any revisions to forward-looking statements to reflect events after the date of this release.